HICAS makes the car less prone to oversteer when driven near limit by adjusting rear toe to reduce tyre slip angle. For the average driver, it should be left on, as not all can react quick enough to an oversteer situation.
For hardcore GTR drivers, it should be removed, as it tends to counter your countersteer when the tail starts to get happy, and in most situation will cause the tail to snap when the ATTESA kicks in.
Erm.. What has rear subframe got to do with power steering?if i change the rear sub frame to non HICAS sub frame,what i need to do for the power steering pump?do i need to change it to non HICAS power steering pump?any issue on front power steering?will it become heavy?...
thanks!!
i not sure,cause i got some info online once remove hicas with change sub frame to non Hicas version,have to do something for the power steering pump,the one hose to rear HICAS steering...?...:)Erm.. What has rear subframe got to do with power steering?
IMHO just put in HICAS cancel bar lor..
thanks for the info bro..btw....Nope you won't have issue with the steering getting heavy or the power steering pump unless you're not using a HICAS boss kit with an aftermarket steering. Just plug the power steering hoses going to the rear.
If the power steering pump fails, you can always opt to use a S13 steering rack with a SR20 power steering pump, which is rather easy to source.
In addition to the above, does it also makes the power steering assistance always run at the high speed mode(similar to using a Non-HICAS boss kit) ? Unless we installed a TOMEI HICAS Canceller Kit ? My ride is a ECR33 S2.If yours is a R34GTT, then it has nothing to do with the power steering pump. R34 runs on electronic HICAS, not hydraulic. If you change the subframe and unplug the HICAS socket, you need to cancel the HICAS electronically using a TOMEI Hicas Canceller Kit, else you will have ECU fault codes.
I just found this out that day, when I asked the mech to check on the HICAS pump. Its electronic. My HICAS still comes out now and then on high speed. I.E above 120. So, how to eliminate this error eh ?If yours is a R34GTT, then it has nothing to do with the power steering pump. R34 runs on electronic HICAS, not hydraulic. If you change the subframe and unplug the HICAS socket, you need to cancel the HICAS electronically using a TOMEI Hicas Canceller Kit, else you will have ECU fault codes.